Tests a Standard R 'data.frame' Cell-By-Cell ('RTestTest_data.frame_cellbycell')
test_returnValue_data.frame_cellbycell(result, reference, xmlTestSpec,
add.desc = NULL)(data.frame) The result data.frame to be tested
(data.frame) The reference data.frame
(XMLNode) The XML definition of type
'RTestTest_data.frame_cellbycell'
(character) Additional description added to the XML
definition.